BlackBerry Pearl 8100

i was trying to download opera mini for my phone and it didn't work so i deleted it and a prompt came up asking me about restarting my phone. i accidently click yes (still trying to get use to the trackball) now my phone has been stuck on that start up loading screen for about a half hour now. can someone plz help me troubleshoot this problem. oh i forgot to mention that it won't let me restart